Cultivator.



i To all 'whom it may concern:

EVERT JOSTDN CRAIG, OF TUTTLE, OKLAHQMA.

GLTIVATOR.

iro. 928,029.

Specification of Letters Patenti Patented .my is, ieee.

.Application-med September 15, i968. Serial No'. 453,123.

Beit known that lf, Evnnr JosToN (ln-Are, a citizen-of the United States, residing at Tuttle, in the county oi Grady and State of klahoma,` have invented certain new and usei'ul Improvements in Cultivators; and I do hereby declare the following to be a full, clear, and exact description oi' the invention, such as will.' enable others' skilled in the art to which it appertains to make and use the saine.

This invention relates to new and'useiul improvements. in -cultivators, and it isthe object of the invention to provide a novel device to be employed in conjunction with a disk cultivator whereby the dirt may be thrown from the row, and to the row, thus producing an implement that does two plowings.

It is also the object oi' the invention to provide a novel device of this character wherein the attachment is secured to the cul- 'tivator proper through the medium oi' a bow spring. t

lturthenrnore, the inventlon has for an obl ject to provide a novel device oi' this character wherein .the connections of the spring with the cuitivator and the connectionsl` of the auxiliary disks with the spring are emin varying the cut oi the auxiliary dis vs. z IThe invention also provide a novel which is simple ot' has i'oran object to device ci this character tively inexpensive to manufacture.

W ith the above and other objects in view, the invention consists in the details oi' con struction and in the novel arrangement and combination of parts to be hereinafter more particularly referred to. l

in describing thel invention in detail, referencewill be had to the accompanying op plan view I 6 toothed and "washer 7. The

an inspection oi' the drawings, it

construction, eilicient andV `aidvantageous in practice, and comparashowing the disks 4, which are concave, and arranged as 4 ordinarily.

Projecting rearwardly from the beam l., is a casting 5, which has its upper surface meshing with these teeth is the Y toothed surface of a wedge-shaped opposed face of the washer 7 is also toothed, and these teeth mesh with the toothed end surface of the under-portion of the bow-spring 8. This bow-spriiu;l 8 is of sufficient size and strength and has the outer surface ofl its opposite end portion toothed, as at 9. This toothed portion is engaged by the toothed surface of a second wedge-sha ed Washer 10. The opposed face of this washer 10 is also toothed, and meshes with the toothed surface of `a casting l1.. This casting 1i is provided with .the arms l2 in 'which is'rnounted the shaft 13, and freed to the shaft i3 are the concave disks is, said disks being-opposed to the disks 4, before referred to.

in view ofthe ioregoing, together with is thought to be apparent that the two operations ci plowing are performed by this machine, that is to say, the diskse will throw the dirt away from thejrow, Yand the disks 11i 4will throw thedirt toward the row.

The depth oi the cut oi `the disks it can be adjusted by the washers .7 and i0. ity changing the washers i0 the dislrs it are set straight, andby changing the washers 7, the disks 1d are caused to out deeper. By changing, it is meant reversi g the position oi the washer, that is to say, to so turn `the washers as to bring the thin portions where the thick portions are now shown.

@ther adjustments may be effected by changing the washers 7 and i0.

lt is to be stated that the spring` 8 is sem cured to the casting 5 through the medium .of a boit 15, which passes through said spring, and casting, and also through the Washer 7. The opposite end oi the s ring is secured to the casting 11, through t 1e inediurn of the bolt 16,` 'which passes through the spring 'and casting, and through the washer'l In order to obviate confusion, it is stated that in the drawings a double cultivator is shown.

l claim:

i.; A. cultivator of the comprising front character described, and rear axles, means car fied by, and receiving said axles, cutting disks fixed to said axles, a resilient"J beam ef bow-like outline, and adjustable means of eleslng serrated Wedge having engagement with one end of said reach and the frame of the rear axle, and member interposed between the opposite end ef said 'reach and. a serrated or notched part carried by the front Xle frame In testimony whereof have signed my neme te this specilicatienin the presence of l tWe subscribing witnesses.

E .WERT JGSTON CRAIG.

Witnesses z' Henin Bases; GEORGE Hanns.

a serrated er notched 

